Trim, lightweight, and comfortable swim diaper encourages swimming—Baby will move freely during swim lessons without feeling weighed down. No bulky fabric and extra snaps, our baby swim diaper is cute enough to wear alone, but slim enough to wear under a standard baby swimsuit. Patented design is breathable, absorbent, and waterproof—As the original swim diaper manufacturer, our patented triple-layer design offers superior function and comfort. No other diaper necessary! Economical and creates less waste—Save money and reduce waste with our machine-washable, reusable swim diaper compared to disposable swim diapers. UPF 50+ sun protection—All i play.® by green sprouts® Swim and Sun Wear offer excellent sun protection by blocking 97.5%-99+% of UV rays.